Table 3.

Terms and classifications of the themes in the thematic map of CA-R.

Cluster	Callon Centrality	Callon Density	Terms	Classification
Coffee	0.056	4.664	Coffee, caffeine, Arabica coffee, chlorogenic acid, roasting, coffee quality, antioxidant, green coffee, arabica, quality, trigonelline, coffee beans, kahweol, phenolic compounds, multivariate analysis, HPLC, robusta, volatile compounds, cup quality, cafestol, roasted coffee, robusta coffee, sensory analysis	Delineating between motor and niche themes
Coffea	0.063	2.810	Coffea, rubiaceae, genetic diversity, ethiopia, gene expression, somatic embryogenesis, germination, molecular markers, coffee berry disease	Basic theme
Fermentation	0.006	4.167	Fermentation	Niche theme
Coffea arabica	0.090	3.925	Coffea arabica, Coffea canephora, Hemileia vastatrix, agroforestry, mineral nutrition, root-knot nematode, coffee leaf rust, resistance, yield, biological control, Hypothenemus hampei, biodiversity, breeding, growth, coffee breeding, agroforestry systems, coffee berry borer, sustainability, water deficit, diversity, productivity, precision agriculture, remote sensing	Delineating between motor and basic themes
Climate change	0.026	3.819	climate change, photosynthesis, oxidative stress, gas exchange, coffee tree	Emerging

*Coffee refers to the beverage made from roasted coffee beans, while Coffea refers to the genus of plants that produce the coffee beans used for making coffee.